Material: bleached and natural pure cotton canvas with acid free and primary with various weights for low and high level markets, pure linen, line mixed with cotton and polyester mixed with linenStyle: nails on side, staples on side, staples on back, nails on side and staples on back, staples freeShape: quadrangle, round, oval, triangle and hexagon suitable for oil and acrylic painted various thickness and shape frames are available customized color labels are acceptedWooden frame